CVE-2026-47291
HTTP.sys Remote Code Execution Vulnerability
Published: Jun 9, 2026Updated: Jun 10, 2026 Sources: CVE List NVD
9.8CVSS
CRITICALInteger overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
EPSS Score
0.2%
Top 57.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
and 28 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
Timeline
Published
Jun 9, 2026
Last Updated
Jun 10, 2026
News mentions
10- Millions at Risk: 9.8 CVSS Remote Code Execution in HTTP.sysen-us·Daily CyberSecurity (securityonline.info)· Summary only·
- Microsoft исправила более 200 уязвимостей и шесть 0-day в своих продуктахru-ru·Хакер (xakep.ru)· Source-only·
- Microsoft Patches Record 206 Flaws, Including Three Zero-Days and Critical RCE Bugsen·The Hacker News· Summary only·
- Blame AI: Patch Tuesday Hits Record 206 CVEsen·Dark Reading· Source-only·
- Microsoft Patch Tuesday for June 2026 — Snort rules and prominent vulnerabilitiesen·Cisco Talos·
- Rapid7en·Rapid7 Blog·
- Microsoft and Adobe Patch Tuesday, June 2026 Security Update Reviewen-us·Qualys Security Blog·
- Microsoft June 2026 Patch Tuesday fixes 6 zero-days, 200 flawsen-us·BleepingComputer· Summary only·
- Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flawsen-us·BleepingComputer· Summary only·
- Microsoft June 2026 Patch Tuesday - SANS Internet Storm Centeren·SANS Internet Storm Center·
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